यदि आप भी bpsc कंप्यूटर टीचर की तैयारी कर रहे हैं। अपनी तैयारी को और भी बेहतर बनाने की कोशिश कर रहे हैं। तो आप को निराश होने की आवश्यकता नहीं है। इस आर्टिकल में आपको DBMS की 50 से भी अधिक MCQ क्वेश्चन उपलब्ध कराये जा रहे हैं। साथ ही क्वेश्चन के आंसर भी दिए गए हैं। इन क्वेश्चन से आप बहुत ही बेहतरीन तैयारी कर सकते हैं। bpsc computer teacher dbms mcq practice set 2023 .
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- Question: Which normal form deals with the partial dependency in a database?
- A. First Normal Form (1NF)
- B. Second Normal Form (2NF)
- C. Third Normal Form (3NF)
- D. Boyce-Codd Normal Form (BCNF)
- Answer: C
- Question: What does DBMS stand for?
- A. Data Business Management System
- B. Database Management System
- C. Digital Binary Management System
- D. Dynamic Backup Management System
- Answer: B
- Question: In a relational database, what is a foreign key?
- A. A key used to access foreign data
- B. A key that is used to encrypt data
- C. A key that uniquely identifies a record in a table
- D. A field in a table that links to the primary key in another table
- Answer: D
- Question: What is the purpose of the SQL SELECT statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: B
- Question: What is the purpose of the SQL WHERE clause?
- A. To specify the columns to be retrieved
- B. To filter the rows to be retrieved
- C. To order the result set
- D. To join two or more tables
- Answer: B
- Question: Which of the following is an example of a DDL (Data Definition Language) command?
- A. SELECT
- B. INSERT
- C. CREATE
- D. UPDATE
- Answer: C
- Question: What is the purpose of the SQL ORDER BY clause?
- A. To filter the rows to be retrieved
- B. To specify the columns to be retrieved
- C. To order the result set
- D. To join two or more tables
- Answer: C
- Question: In a relational database, what is a view?
- A. A virtual table based on the result of a SELECT query
- B. A physical table that stores data
- C. A key used to establish relationships between tables
- D. A unique identifier for a record in a table
- Answer: A
- Question: What does ACID stand for in the context of database transactions?
- A. Atomicity, Consistency, Integrity, Durability
- B. Association, Categorization, Indexing, Design
- C. Authorization, Classification, Isolation, Deployment
- D. Aggregation, Coordination, Inference, Decomposition
- Answer: A
- Question: Which of the following is an example of a database trigger?
- A. A procedure that is automatically executed in response to a specific event
- B. A statement that retrieves data from a table
- C. A command that creates a new table
- D. A function that calculates the average value of a column
- Answer: A
- Question: What is the purpose of the SQL GROUP BY clause?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To group the result set based on one or more columns
- D. To join two or more tables
- Answer: C
- Question: Which of the following statements is true about a database index?
- A. It is used to create a backup copy of the database
- B. It is a data structure that improves the speed of data retrieval operations on a database table
- C. It is used to encrypt sensitive data in the database
- D. It is a key used to establish relationships between tables
- Answer: B
- Question: What is the purpose of the SQL HAVING clause?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To filter the result set based on a condition applied to aggregated values
- Answer: D
- Question: Which normal form ensures that there are no transitive dependencies in a database?
- A. First Normal Form (1NF)
- B. Second Normal Form (2NF)
- C. Third Normal Form (3NF)
- D. Boyce-Codd Normal Form (BCNF)
- Answer: C
- Question: What is the purpose of the SQL JOIN clause?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To combine rows from two or more tables based on a related column between them
- Answer: D
- Question: Which of the following is not a component of a database system?
- A. Users
- B. Database Administrator (DBA)
- C. Query Language
- D. CPU (Central Processing Unit)
- Answer: D
- Question: What is the purpose of the SQL UPDATE statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: C
- Question: In the context of database transactions, what does isolation refer to? –
- A. The changes made by a transaction are permanent
- B. The changes made by a transaction are not visible to other transactions until they are committed
- C. The changes made by a transaction are immediately visible to other transactions
- D. The transaction is rolled back to its initial state
- Answer: B
- Question: Which of the following is an example of a database schema?
- A. A table with sample data
- B. The structure that defines the organization of data in a database
- C. A set of SQL queries
- D. The result of a SELECT query
- Answer: B
- Question: What is the purpose of the SQL DELETE statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: D
- Question: Which of the following is a disadvantage of a distributed database system?
- A. Improved data availability and reliability
- B. Simplified management and administration
- C. Increased data security
- D. Increased complexity and potential for network failures
- Answer: D
- Question: What is a stored procedure in a database?
- A. A temporary table that is created during a query
- B. A precompiled collection of one or more SQL statements that can be executed as a single unit
- C. A key used to establish relationships between tables
- D. A type of index used to speed up data retrieval
- Answer: B
- Question: Which of the following is a function of a database management system (DBMS)?
- A. Generating random data
- B. Providing a mechanism for data storage, retrieval, and manipulation
- C. Displaying data on the screen
- D. Creating data models
- Answer: B
- Question: What is the purpose of the SQL INSERT statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: A
- Question: Which of the following is an example of a database constraint?
- A. SELECT
- B. WHERE
- C. CHECK
- D. FROM
- Answer: C
- Question: What is the purpose of the SQL DISTINCT keyword?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To eliminate duplicate values from the result set
- Answer: D
- Question: What is a database transaction?
- A. A single SQL statement
- B. A set of SQL statements that are executed together as a single unit
- C. A database query
- D. A database schema
- Answer: B
- Question: Which of the following is a benefit of using a database index?
- A. Increased complexity of queries
- B. Improved data security
- C. Faster data retrieval operations
- D. Reduced storage space
- Answer: C
- Question: What is the purpose of the SQL TRUNCATE statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To remove all records from a table, but retain the table structure
- Answer: D
- Question: What is normalization in the context of a relational database?
- A. The process of reducing redundancy and improving data integrity
- B. The process of encrypting sensitive data
- C. The process of creating indexes on tables
- D. The process of merging two or more tables into a single table
- Answer: A
- Question: Which of the following is a disadvantage of denormalization in a database?
- A. Improved data integrity
- B. Increased redundancy
- C. Simplified data retrieval
- D. Reduced storage space
- Answer: B
- Question: What is the purpose of the SQL UNION operator?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To combine the result sets of two or more SELECT statements
- D. To join two or more tables
- Answer: C
- Question: Which of the following is an example of a database view?
- A. A physical table that stores data
- B. A virtual table based on the result of a SELECT query
- C. A key used to establish relationships between tables
- D. A unique identifier for a record in a table
- Answer: B
- Question: What is the purpose of the SQL BETWEEN operator?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To filter the result set based on a range of values
- Answer: D
- Question: What is a data warehouse?
- A. A database that is optimized for transaction processing
- B. A database that stores historical and current data for analysis and reporting
- C. A database that is used for temporary storage of data
- D. A database that is designed for small-scale applications
- Answer: B
- Question: Which of the following is a characteristic of a NoSQL database?
- A. Strict adherence to a fixed schema
- B. Support for complex transactions
- C. Horizontal scalability
- D. Limited data types
- Answer: C
- Question: What is the purpose of the SQL LIKE operator?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To filter the result set based on a pattern
- Answer: D
- Question: What is a database trigger?
- A. A temporary table that is created during a query
- B. A precompiled collection of one or more SQL statements that can be executed as a single unit
- C. A statement that retrieves data from a table
- D. A function that calculates the average value of a column
- Answer: B
- Question: Which of the following is a disadvantage of using stored procedures in a database?
- A. Increased security
- B. Reduced reusability of code
- C. Simplified maintenance
- D. Improved performance
- Answer: B
- Question: Which of the following is an example of a DDL (Data Definition Language) command?
- A. SELECT
- B. INSERT
- C. CREATE
- D. UPDATE
- Answer: C
- Question: What is the purpose of the SQL ORDER BY clause?
- A. To filter the rows to be retrieved
- B. To specify the columns to be retrieved
- C. To order the result set
- D. To join two or more tables
- Answer: C
- Question: In a relational database, what is a view?
- A. A virtual table based on the result of a SELECT query
- B. A physical table that stores data
- C. A key used to establish relationships between tables
- D. A unique identifier for a record in a table
- Answer: A
- Question: What does ACID stand for in the context of database transactions?
- A. Atomicity, Consistency, Integrity, Durability
- B. Association, Categorization, Indexing, Design
- C. Authorization, Classification, Isolation, Deployment
- D. Aggregation, Coordination, Inference, Decomposition
- Answer: A
- Question: Which of the following is an example of a database trigger?
- A. A procedure that is automatically executed in response to a specific event
- B. A statement that retrieves data from a table
- C. A command that creates a new table
- D. A function that calculates the average value of a column
- Answer: A
- Question: What is the purpose of the SQL GROUP BY clause?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To group the result set based on one or more columns
- D. To join two or more tables
- Answer: C
- Question: Which of the following statements is true about a database index?
- A. It is used to create a backup copy of the database
- B. It is a data structure that improves the speed of data retrieval operations on a database table
- C. It is used to encrypt sensitive data in the database
- D. It is a key used to establish relationships between tables
- Answer: B
- Question: What is the purpose of the SQL HAVING clause?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To filter the result set based on a condition applied to aggregated values
- Answer: D
- Question: Which normal form ensures that there are no transitive dependencies in a database?
- A. First Normal Form (1NF)
- B. Second Normal Form (2NF)
- C. Third Normal Form (3NF)
- D. Boyce-Codd Normal Form (BCNF)
- Answer: C
- Question: What is the purpose of the SQL JOIN clause?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To combine rows from two or more tables based on a related column between them
- Answer: D
- Question: Which of the following is not a component of a database system?
- A. Users
- B. Database Administrator (DBA)
- C. Query Language
- D. CPU (Central Processing Unit)
- Answer: D
- Question: What is the purpose of the SQL UPDATE statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: C
- Question: In the context of database transactions, what does isolation refer to? –
- A. The changes made by a transaction are permanent
- B. The changes made by a transaction are not visible to other transactions until they are committed
- C. The changes made by a transaction are immediately visible to other transactions
- D. The transaction is rolled back to its initial state
- Answer: B
- Question: Which of the following is an example of a database schema?
- A. A table with sample data
- B. The structure that defines the organization of data in a database
- C. A set of SQL queries
- D. The result of a SELECT query
- Answer: B
- Question: What is the purpose of the SQL DELETE statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: D
- Question: Which of the following is a disadvantage of a distributed database system?
- A. Improved data availability and reliability
- B. Simplified management and administration
- C. Increased data security
- D. Increased complexity and potential for network failures
- Answer: D
- Question: What is a stored procedure in a database?
- A. A temporary table that is created during a query
- B. A precompiled collection of one or more SQL statements that can be executed as a single unit
- C. A key used to establish relationships between tables
- D. A type of index used to speed up data retrieval
- Answer: B
- Question: Which of the following is a function of a database management system (DBMS)?
- A. Generating random data
- B. Providing a mechanism for data storage, retrieval, and manipulation
- C. Displaying data on the screen
- D. Creating data models
- Answer: B
- Question: What is the purpose of the SQL INSERT statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To delete data from a table
- Answer: A
- Question: Which of the following is an example of a database constraint?
- A. SELECT
- B. WHERE
- C. CHECK
- D. FROM
- Answer: C
- Question: What is the purpose of the SQL DISTINCT keyword?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To eliminate duplicate values from the result set
- Answer: D
- Question: What is a database transaction?
- A. A single SQL statement
- B. A set of SQL statements that are executed together as a single unit
- C. A database query
- D. A database schema
- Answer: B
- Question: Which of the following is a benefit of using a database index?
- A. Increased complexity of queries
- B. Improved data security
- C. Faster data retrieval operations
- D. Reduced storage space
- Answer: C
- Question: What is the purpose of the SQL TRUNCATE statement?
- A. To insert data into a table
- B. To retrieve data from one or more tables
- C. To update data in a table
- D. To remove all records from a table, but retain the table structure
- Answer: D
- Question: What is normalization in the context of a relational database?
- A. The process of reducing redundancy and improving data integrity
- B. The process of encrypting sensitive data
- C. The process of creating indexes on tables
- D. The process of merging two or more tables into a single table
- Answer: A
- Question: Which of the following is a disadvantage of denormalization in a database?
- A. Improved data integrity
- B. Increased redundancy
- C. Simplified data retrieval
- D. Reduced storage space
- Answer: B
- Question: What is the purpose of the SQL UNION operator?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To combine the result sets of two or more SELECT statements
- D. To join two or more tables
- Answer: C
- Question: Which of the following is an example of a database view?
- A. A physical table that stores data
- B. A virtual table based on the result of a SELECT query
- C. A key used to establish relationships between tables
- D. A unique identifier for a record in a table
- Answer: B
- Question: What is the purpose of the SQL BETWEEN operator?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To filter the result set based on a range of values
- Answer: D
- Question: What is a data warehouse?
- A. A database that is optimized for transaction processing
- B. A database that stores historical and current data for analysis and reporting
- C. A database that is used for temporary storage of data
- D. A database that is designed for small-scale applications
- Answer: B
- Question: Which of the following is a characteristic of a NoSQL database?
- A. Strict adherence to a fixed schema
- B. Support for complex transactions
- C. Horizontal scalability
- D. Limited data types
- Answer: C
- Question: What is the purpose of the SQL LIKE operator?
- A. To filter the rows to be retrieved
- B. To order the result set
- C. To specify the columns to be retrieved
- D. To filter the result set based on a pattern
- Answer: D
- Question: What is a database trigger?
- A. A temporary table that is created during a query
- B. A precompiled collection of one or more SQL statements that can be executed as a single unit
- C. A statement that retrieves data from a table
- D. A function that calculates the average value of a column
- Answer: B
- Question: Which of the following is a disadvantage of using stored procedures in a database?
- A. Increased security
- B. Reduced reusability of code
- C. Simplified maintenance
- D. Improved performance
- Answer: B
साराँश
उम्मीद है आप सभी को dbms mcq का ये प्रैक्टिस सेट पसंद आया होगा। सरकारी योजना ,बिहार सरकार योजना ,स्कॉलरशिप ,नौकरी ,स्टार्टअप की पूरी जानकारी के लिए आप हम से जुड़े रहे।
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